Ferdynand Ruszczyc is high-key - luminous, open, and weighted toward light. Cool hues prevail: blues, greens, and greys anchor the palette's emotional temperature. Mid-saturation across the board: the palette has colour character without chromatic excess. The saturated accent, #89B5E9, registers at 6.1% - sparse enough to feel like a deliberate surprise. At 63 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 3 of Ferdynand Ruszczyc's sequence - a single chapter in a chromatic story told across many works.